He has a 5-car garage for his collection of Ferraris, including an F40.

Photo: Bob Edwards, .

He has a 5-car garage for his collection of Ferraris, including an...

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Two books that influenced him: “Think and Grow Rich” and “Influencer: The Power to Change Anything.”

Photo: .

Two books that influenced him: “Think and Grow Rich” and...

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For a couple of years in the late '90s at Christmas, he spent over $100,000 on the "world's tallest Christmas tree," which he set up on the store's parking lot. Pictured is a 105-foot Norwegian spruce outside Gallery Furniture on Dec. 1, 1999.

The furniture-store legend and popular TV pitchman posted on Twitter: "Heart rate too high to go home! My kingdom for a Tempurpedic!" (Tempur-Pedic is a popular mattress brand sold at Gallery and other stores.)

McIngvale revealed to his fans and customers on Facebook Thursday that he has returned for treatment for a heart problem.

Suffering from an abnormal heartbeat, the businessman and philanthropist posted a photo of himself on a hospital bed. But in pure Mack fashion, he's keeping an upbeat attitude, saying, "A set back is just a set up for a come back!"